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Power Up!
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In this online game, learners must purchase power plants for their city.

Life in the Sidewalk Cracks
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In this activity, learners compare plant and animal life in different habitats including a sidewalk crack and lawn. Learners sort human-made materials and natural materials found in each habitat.

Sand, Plants and Pants
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In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.

Planting with Precision
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In this activity, learners explore how engineers work to solve the challenges of a society, such as efficient planting and harvesting.

The Carbon Cycle and its Role in Climate Change: Activity 2
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In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

Build a Coral Polyp
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In this activity, learners build one or more edible coral polyps and place them together to form a colony.

Hold a Hill
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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

Make a Terrarium
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In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

The Carbon Cycle and its Role in Climate Change: Activity 3
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In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

Nowhere to Hide
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In this online simulation, learners can see adaptation and camouflage in action.

The Effects of Acid Rain
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In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.

Make Your Own Paper
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The Chinese invented paper made from plants and cloth about 2,000 years ago. Learners follow a similar process to make paper from recycled paper.

Environmental Chemistry
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In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.

Size Wheel
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In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

Can Fishing
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In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.

Fragile Waters
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In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

Going for a Spin: Making a Model Steam Turbine
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In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.
Building a Community From the Ground Up
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In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit